论文标题
Eftoflss的宇宙学推断：EBOSS QSO全形分析
Cosmological inference from the EFTofLSS: the eBOSS QSO full-shape analysis
论文作者
论文摘要
我们提出了从eBoss类星体（QSO）功率谱的全形的有效场理论（EFT）分析推断出的宇宙学结果。我们验证分析管道针对仿真，并在傅立叶和配置空间中的分析之间找到总体良好的一致性。 Keeping the baryon abundance and the spectral tilt fixed, we reconstruct at $68\%$ CL the fractional matter abundance $Ω_m$, the reduced Hubble constant $h$, and the clustering amplitude $σ_8$, to respectively $Ω_m=0.327\pm 0.035$, $h=0.655\pm 0.034$, and $σ_8= 0.880 \ pm 0.083 $仅来自Eboss QSO。这些约束在$ \ lyssim1.8σ$中与普朗克和老板全形的EFT分析相一致。有趣的是，从Eboss QSO重建的$ S_8 $略高于Planck和Boss推论的$，尽管在统计上是一致的。结合Boss，Pantheon的Supernovae的EFT可能性以及Lyman- $α$和6DF/mgs的BAO，约束提高到$ω__m= 0.2985 \ pm 0.0069 $和$ h = 0.6803 \ pm 0.0075 $，与Planck and clanciss and clanciss celipers and clancision and clancision clanciess。我们还探索了$λ$ cdm的单参数扩展名，发现结果与$ \ lyssim1.3σ$的flat $λ$ cdm一致。我们在曲率密度分数$ω_k= -0.039 \ pm 0.029 $，状态的暗能量方程$ w_0 = -1.038 \ pm 0.041 $，相对论物种的有效数量$ n_ _ {\ rm eff} = 3.444^0.44^$ at $ w_44^$ at $ w_44^$ at $ w_44^$ at $ w_44^$ at $ w_44^$ at $ w_44^$ at $ w_44^0.44^$ an Cl，以及中微子质量的总和$ \ summ_ν<0.274e $ v $ 95 \％$ cl，没有普朗克数据。包括普朗克数据在内，由于LSS和CMB测量之间的红移中的大杠杆臂可显着改善。特别是，我们获得了严格的约束$ \ summ_ν<0.093e $ v，与最近的lyman-$α$ forest Power Spectrum绑定的竞争。
We present cosmological results inferred from the effective-field theory (EFT) analysis of the full-shape of eBOSS quasars (QSO) power spectrum. We validate our analysis pipeline against simulations, and find overall good agreement between the analyses in Fourier and configuration space. Keeping the baryon abundance and the spectral tilt fixed, we reconstruct at $68\%$ CL the fractional matter abundance $Ω_m$, the reduced Hubble constant $h$, and the clustering amplitude $σ_8$, to respectively $Ω_m=0.327\pm 0.035$, $h=0.655\pm 0.034$, and $σ_8=0.880\pm 0.083$ from eBOSS QSO alone. These constraints are consistent at $\lesssim 1.8σ$ with the ones from Planck and from the EFT analysis of BOSS full-shape. Interestingly $S_8$ reconstructed from eBOSS QSO is slightly higher than that deduced from Planck and BOSS, although statistically consistent. In combination with the EFT likelihood of BOSS, supernovae from Pantheon, and BAO from lyman-$α$ and 6dF/MGS, constraints improve to $Ω_m = 0.2985\pm 0.0069$ and $h = 0.6803\pm 0.0075$, in agreement with Planck and with similar precision. We also explore one-parameter extensions to $Λ$CDM and find that results are consistent with flat $Λ$CDM at $\lesssim 1.3σ$. We obtain competitive constraints on the curvature density fraction $Ω_k=-0.039\pm 0.029$, the dark energy equation of state $w_0=-1.038\pm 0.041$, the effective number of relativistic species $N_{\rm eff}=3.44^{+0.44}_{-0.91}$ at $68\%$ CL, and the sum of neutrino masses $\sum m_ν<0.274e$V at $95\%$ CL, without Planck data. Including Planck data, contraints significantly improve thanks to the large lever arm in redshift between LSS and CMB measurements. In particular, we obtain the stringent constraint $\sum m_ν<0.093e$V, competitive with recent lyman-$α$ forest power spectrum bound.
